348 BOTANY.Hab.—Twin Lakes, on moist ground. Beachythecium collinum, Schl. Hab.—Twin Lakes, on the banks of creeks. Euehynchium steigosum, Hoffm. Hab.—Twin Lakes, by the roots of trees in woods. Euehynchium pilifeeum, Schreb. Hab —Twin Lakes, on shaded ground. Amblystegium Speucei, Brch.—In small, dense cushions, dioicous;stems capillary, very minute and slender, sparingly and vaguely branched.Leaves remote, spreading, narrowly ovate-acuminate, almost entire, nerve¬less, loosely reticulated; perichsetial leaves attenuated, serrate at tlie apex.Capsule erect or slightly curved, from a distinct neck, oval and obovate,and, when dry, widely obconic; peristome yellow; operculum conical,acuminate. Hab.—Twin Lakes, in moist places on rocks. Amblystegium seepens, Linn. Hab.—Twin Lakes, on old logs, roots of trees, and on the ground inwet situations. Amblystegium eadicale, Brid. Hab.—Twin Lakes, on old logs and wet ground. Hypnum stellatum, Schreb. Hab.—Twin Lakes, on moist ground. Hypnum aduncum, Hedw. Hab.—Twin Lakes, on the banks of running streams. Hypnun adukcum, var. /?. geacillescens, B. & S. Hab.—Twin Lakes, on damp, shady ground. Hypnum aduncum, var. d. tenue, B. & S. Hab.—Twin Lakes, in similar places. Hypnum aduncum, var. <?. giganteum, B. & S. Hab.—Twin Lakes, in standing water. Hypnum uncinatum, Hedw. Hab.—Twin Lakes, on moist ground and old wood. Hypiium FiLiciNUM, Linn. Hab.—Twin Lakes, along the banks of streamlets.